diff options
author | Song Liu <song@kernel.org> | 2021-04-26 00:43:32 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 16:30:58 +0300 |
commit | 01bd8efcec444468db0275bbd71b49927f7e1544 (patch) | |
tree | b31081a17badba1492cac6b7ff8ec33a0a595c58 /tools/perf/util/bpf_counter.c | |
parent | 112cb56164bc2108a55aee785d841a35aab0616a (diff) | |
download | linux-01bd8efcec444468db0275bbd71b49927f7e1544.tar.xz |
perf stat: Introduce ':b' modifier
Introduce 'b' modifier to event parser, which means use BPF program to
manage this event. This is the same as --bpf-counters option, but only
applies to this event. For example,
perf stat -e cycles:b,cs # use bpf for cycles, but not cs
perf stat -e cycles,cs --bpf-counters # use bpf for both cycles and cs
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/r/20210425214333.1090950-5-song@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf_counter.c')
-rw-r--r-- | tools/perf/util/bpf_counter.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c index 33b1888103df..f179f5743025 100644 --- a/tools/perf/util/bpf_counter.c +++ b/tools/perf/util/bpf_counter.c @@ -790,7 +790,7 @@ int bpf_counter__load(struct evsel *evsel, struct target *target) { if (target->bpf_str) evsel->bpf_counter_ops = &bpf_program_profiler_ops; - else if (target->use_bpf || + else if (target->use_bpf || evsel->bpf_counter || evsel__match_bpf_counter_events(evsel->name)) evsel->bpf_counter_ops = &bperf_ops; |